Three Envelopes Problem

Question

Possible Duplicate:
The Monty Hall problem

Three envelopes are presented in front of you by an interviewer. One contains a job offer, the other two contain rejection letters. You pick one of the envelopes. The interviewer then shows you the contents of one of the other envelopes, which is a rejection letter. The interviewer now gives you the opportunity to switch envelope choices. Should you switch?

It depends .. does the interviewer know which envelope contains what? Does the interviewer always open an envelope? — Bram28, Nov 21 '18 at 01:21

score 1 · Accepted Answer · answered Jan 14 '13 at 22:55

1

yea u should

P of correct envelope the first time you picked is 1/3

That 1/3 has not changed so by switching you essentially make a switch with a P of 1/2.

Or something along those lines.

answered Jan 14 '13 at 22:55

Sidharth Ghoshal

16,771

Three Envelopes Problem

1 Answers1